Coreopsis
Coreopsis verticillata and C. grandiflora
Coreopsis is a cheerful, long-flowering North American native with yellow, pink or red daisy flowers all summer. Threadleaf types have fine, feathery foliage.
Photo: Chrumps · CC BY-SA 3.0, via Wikimedia Commons
Essential Care Requirements
Light
Full sun
Watering
Low
Water until established; drought tolerant afterwards.
Soil
Well-drained, average to poor soil; pH 5.5–7.5.
Temperature and humidity
-30–38 °C · Moderate humidity
Feeding
Little feeding needed.
Pruning and propagation
Propagate by division, seed
Deadhead or shear lightly to keep flowers coming.
Coreopsis is not toxic.
Top Cultivation Tips
Great for pollinator and native gardens.
Divide every 2–3 years.
Avoid wet winter soil.
Hardy in USDA zones 4–9.
Common problems
Aphids
Small, soft-bodied insects that cluster on new shoots and buds, sucking sap and leaving sticky honeydew behind.
How to treat it →DiseaseLeaf spot
Fungal or bacterial infections that cause brown, black or purple spots on leaves, often with a yellow halo, leading to early leaf drop.
How to treat it →DiseasePowdery mildew
A fungal disease that coats leaves, buds and young shoots with a white, flour-like dust, weakening the plant and spoiling flowers and fruit.
How to treat it →
